---

yaml --- r: 234565 b: refs/heads/master c: c02aa73 h: refs/heads/master i: 234563: 9062b8c v: v3
git-mirror · Mar 4, 2011 · 2ae7de7 · 2ae7de7
1 parent a6a2d20
commit 2ae7de7
Show file tree

Hide file tree

Showing 2 changed files with 8 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a2f5c9ab79f78e8b91ac993e0543d65b661dd19b
+refs/heads/master: c02aa73b1d18e43cfd79c2f193b225e84ca497c8
diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c
@@ -4981,12 +4981,15 @@ static int __sched_setscheduler(struct task_struct *p, int policy,
 			    param->sched_priority > rlim_rtprio)
 				return -EPERM;
 		}
+
 		/*
-		 * Like positive nice levels, dont allow tasks to
-		 * move out of SCHED_IDLE either:
+		 * Treat SCHED_IDLE as nice 20. Only allow a switch to
+		 * SCHED_NORMAL if the RLIMIT_NICE would normally permit it.
 		 */
-		if (p->policy == SCHED_IDLE && policy != SCHED_IDLE)
-			return -EPERM;
+		if (p->policy == SCHED_IDLE && policy != SCHED_IDLE) {
+			if (!can_nice(p, TASK_NICE(p)))
+				return -EPERM;
+		}
 
 		/* can't change other user's priorities */
 		if (!check_same_owner(p))